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Climate change is caused by both natural and human factors. Naturally, climate is influenced by volcanic eruptions, ocean currents, comets, and the sun. However, the largest influence is the greenhouse effect where gases like carbon dioxide and methane in the atmosphere trap heat from the sun and warm the planet. While the earth has warmed overall since 1900, the warming has not been uniform and some areas have been less affected than others.
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Global Warming
Global warming is caused by increased levels of greenhouse gases from human activities like burning fossil fuels. The greenhouse effect occurs naturally and makes Earth habitable, but human activities have enhanced the effect. Burning fossil fuels and other activities have increased carbon dioxide and methane levels, trapping more heat in the lower atmosphere and leading to warming temperatures worldwide. This global warming will cause significant climate change impacts like sea level rise and more extreme weather unless reduced. The Philippines is especially vulnerable to these impacts due to its geography and development.
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This document discusses various natural and human factors that can influence climate change. It describes several natural processes such as volcanic eruptions, ocean circulation patterns, solar activity, and Earth's orbital and rotational changes that have short or long-term effects on climate. It also explains how human activities like burning fossil fuels and deforestation have increased greenhouse gases in the atmosphere and led to issues like global warming and ocean acidification. The document provides examples and diagrams to illustrate these concepts and their impacts on climate.
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Climate change is causing major changes in temperature, precipitation patterns, and wind patterns according to the document. Temperature increases are already melting glaciers and sea ice as well as causing more frequent and intense heat waves. Precipitation patterns are also shifting, with wet areas expected to get wetter and dry areas drier. Wind speeds have also been found to slow across parts of the Northern Hemisphere when other regions experience higher temperatures. These changes are negatively impacting society through more extreme weather, declining air quality, and stresses on water supply and quality. Technology has also contributed to increased energy use and fossil fuel burning, exacerbating the climate crisis.
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Climate change is causing major changes in temperature, precipitation patterns, and wind patterns according to the document. Temperature increases are already melting glaciers and sea ice as well as causing more frequent and intense heat waves. Precipitation patterns are also shifting, with wet areas expected to get wetter and dry areas drier. Wind speeds have also been found to slow across parts of the Northern Hemisphere when other regions experience higher temperatures. These changes are negatively impacting society through more extreme weather, declining air quality, and stresses on water supply and quality. Technology has also contributed to increased energy use and fossil fuel burning, exacerbating the climate crisis.
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The document discusses several natural causes of past climate change:
1) Solar activity, with periods of lower sunspot activity corresponding to "Little Ice Ages" and higher activity to warm periods like the Medieval Warm Period. However, solar activity does not correlate with warming since 1975.
2) Orbital cycles known as Milankovitch cycles, which cause ice ages and warm interglacial periods over 100,000 year cycles.
3) Large volcanic eruptions, which eject aerosols that reflect sunlight and cause short-term global cooling lasting several years.
4) Ocean circulation patterns, with changes potentially causing Europe to be 6-8°C cooler during glacial periods due to reductions in the
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The Earth’s climate is dynamic and characterised by trends, aberrations and quasi-periodic oscillations varying over a broad range of time-scales [1], which are governed by external (extraterrestrial systems) and/or internal(ocean, atmosphere and land system). Trends are largely controlled by plate tectonics, and thus to change gradually on million year time scale. Aberrations occur when the certain thresholds are passed and are manifested in the geological record as the unusual rapid (less than a few thousands of years) or extreme change in climate. The quasi-periodic oscillations are mostly astronomically paced; they are driven by astronomical perturbations that affect the earth’s orbit around the sun and the orientation of earth’s rotation axis with respect to its orbital plane. These perturbations are described by the three main astronomical cycles: eccentricity, precession and obliquity, which together determine the spatial and seasonal pattern of insolation received by the earth [2], eventually resulting in climatic oscillations of ten to hundreds of thousands of year [3].Sun being the main source of energy for the earth system controls the climate of it. Variation in solar activity and cosmic ray intensity has direct influence over climatic features such as cloudiness, temperature and rainfall [4]. Volcanic eruptions also force all elements of the climatic systems up to a varying degree but producing long term climatic signals in the ocean. The cumulative volcanic cooling effect at present offsets about one third of anthropogenic warming [5].Other than these causes paleoclimatologists also relates the past climate changes with movement of solar system[6], interplanetary dusts and influence of asteroids[7].However the recent variability in climate what earth is experiencing is unlikely due to any of the individual above factors rather it is due to the compound effect of complex interactions of all the natural as well as anthropogenic forcings.
References:
1. J. C. Zachos, M. Pagani, L. Sloan, E. Thomas, K. Billups, Science 292 (2001) 686-693.
2. G. Kukla, Nature (London) 253, 600 (1975).
3. J. D. Hays, J. Imbrie, N. J. Shackleton, Science 194 (1876) 1121-1132.
4. N. Marsh, H. Swensmark, Space Sci. Rev. 94 (2000) 215-230.
5. T. L. Delworth, V. Ramaswamy, G. L. Stenchikov, Geophys. Res. Lett. 32 (2005) L24709.
6. K. Fuhrer, E. W. Wolf, S. J. Johnsen, J. Geophys. Res. 104(D24) (1999) 31043-31052
7. P. Hut, W. Alvarez, W. P. Elder, T. Hansen, E. G. Kauffman, G. Keller, E. M. Shoemaker & P. R. Weissman, Nature Vol. 329, 10 September, 1987
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Potential and realized consequences of climate change include:
1) Drought, melting ice, rising sea levels, and permafrost melt are already occurring as a result of climate change.
2) Additional potential consequences that some experts say may already be happening include altered ocean circulation patterns and more extreme weather events.
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The document discusses several natural causes of past climate change:
1) Solar activity, with periods of lower sunspot activity corresponding to "Little Ice Ages" and higher activity to warm periods like the Medieval Warm Period. However, solar activity does not correlate with warming since 1975.
2) Orbital cycles known as Milankovitch cycles, which cause ice ages and warm interglacial periods over 100,000 year cycles.
3) Large volcanic eruptions, which eject aerosols that reflect sunlight and cause short-term global cooling lasting several years.
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The document discusses the causes and effects of global warming. It explains that the scientific consensus, as represented by the IPCC, is that human greenhouse gas emissions are the dominant cause of recent global warming. As the planet warms, it is leading to increased frequency and severity of natural disasters like hurricanes, floods and droughts. The melting of ice sheets is also causing sea levels to rise, which increases damage from storms. While some natural disasters remain steady, hydro-meteorological events like hurricanes have been increasing due to warming oceans and atmosphere providing more fuel for storms.
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References:
1. J. C. Zachos, M. Pagani, L. Sloan, E. Thomas, K. Billups, Science 292 (2001) 686-693.
2. G. Kukla, Nature (London) 253, 600 (1975).
3. J. D. Hays, J. Imbrie, N. J. Shackleton, Science 194 (1876) 1121-1132.
4. N. Marsh, H. Swensmark, Space Sci. Rev. 94 (2000) 215-230.
5. T. L. Delworth, V. Ramaswamy, G. L. Stenchikov, Geophys. Res. Lett. 32 (2005) L24709.
6. K. Fuhrer, E. W. Wolf, S. J. Johnsen, J. Geophys. Res. 104(D24) (1999) 31043-31052
7. P. Hut, W. Alvarez, W. P. Elder, T. Hansen, E. G. Kauffman, G. Keller, E. M. Shoemaker & P. R. Weissman, Nature Vol. 329, 10 September, 1987
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The document discusses the greenhouse effect and global warming. It defines the greenhouse effect as certain gases, like carbon dioxide and methane, trapping heat in the lower atmosphere and causing the surface temperature to increase. Global warming is defined as the long-term rise in the Earth's temperatures due to these increased gases. The document lists the major greenhouse gases and examines the causes of the greenhouse effect and global warming, both natural and human-made, as well as their effects. It concludes with recommendations for preventing further global warming through conservation efforts.
Climate changes past and future
- Climate change occurs on various timescales and is influenced by factors like solar activity, Earth's orbit, atmospheric composition and greenhouse gases, volcanic eruptions, and human activities like fossil fuel burning.
- Evidence from geology and fossils shows past climate changes, including intervals warmer than today and ice ages. The last ice age peaked around 20,000 years ago and glaciers have since retreated.
- Future climate is uncertain but computer models predict global warming and changing precipitation patterns if CO2 doubles from current levels due to feedbacks like ice-albedo and water vapor effects. Careful study of past and present helps understand complex climate system.
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The document discusses various factors that influence weather and climate, including the sun, Earth's orbit and tilt, ocean currents, greenhouse gases, and human activities. It provides details on climate cycles driven by changes in eccentricity, obliquity and precession of Earth's orbit over thousands of years. Climate variations also occur over shorter timescales due to phenomena like El Nino. The document examines how climate change is affecting Virginia's ecosystems and species.
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Global warming is the observed increase in average global temperatures over the past century caused by trash, contamination, climatic changes, the greenhouse effect, and burning forests. This is leading to effects like further climatic changes, increased dryness, less available water, extreme heat, and melting of the Arctic. Scientists are working to lower global warming levels by reducing these causes and mitigating the effects.
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A PowerPoint used in class to cover the key forms of evidence you need to know for the Exam. Key Questions are likely to be focused on how we can gain information of past climatic change, and how it can be used to predict future, and I would expect you to be able to comment on the usefulness of the different types. For instance, Ice cores are highly accurate and quantifiable evidence, but gaining them is expensive, and only gives a climatic record for the site at which the snow formed. However, they do provide the longest record of change.
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Potential and realized consequences of climate change include:
1) Drought, melting ice, rising sea levels, and permafrost melt are already occurring as a result of climate change.
2) Additional potential consequences that some experts say may already be happening include altered ocean circulation patterns and more extreme weather events.
3) Further potential consequences include threats to biodiversity like coral bleaching and disrupted animal migration patterns, shifting agricultural production, and risks to human health from factors like heat waves.
Global warming
Global warming refers to the long-term rise in the average temperature of the Earth's climate system. The effects include a rise in average global temperatures, especially affecting the Arctic region, and a rise in sea levels. Unless addressed, the consequences will include changes to weather patterns, threats to human and wildlife health, and melting of glaciers and ice sheets. The greenhouse effect, caused by gases that trap heat in the lower atmosphere, is the underlying process of global warming. Solutions require immediate action to reduce pollution and protect the planet for future generations.
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- Climate varies naturally due to regular orbital cycles that influence sunlight and atmospheric greenhouse gases, but is also influenced by human activities that are increasing global temperatures
- Both natural cycles and human-caused trends affect global climate over time, with temperatures and climates highly variable the farther back in history
- Impacts of climate change are widespread and complex, affecting weather patterns, sea levels, ecosystems, agriculture, economies and human health and security
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There are two main ways that energy from the sun is transferred around Earth - through the atmosphere and oceans. In the atmosphere, convection currents caused by uneven heating from the sun create wind patterns and transport thermal energy from the equator to higher latitudes. In the oceans, warm and cold water currents similarly transport thermal energy around the globe as denser cold water sinks and warmer water rises. Ocean currents such as the Gulf Stream carry energy from the equator to northern latitudes.
Weather and climate
The document discusses the differences between weather and climate. Weather describes current atmospheric conditions in a place, while climate refers to conditions over a long period of time. It then describes the structure of the atmosphere, including the troposphere, stratosphere, mesosphere, and thermosphere. The atmosphere contains gases like nitrogen, oxygen, and carbon dioxide that make life possible. Temperature on Earth varies depending on factors like latitude, altitude, and distance from bodies of water.
Weather Words
This document defines key vocabulary words related to weather including: weather, atmosphere, temperature, front, wind, anemometer, meteorologist, and weather map. Weather is defined as the happenings in the atmosphere at a certain time. Other terms defined are atmosphere, temperature, front, wind, anemometer, meteorologist, and weather map.
06 Chapter 11 Weather Climate
This document discusses key concepts about weather and climate, including temperature, rainfall, wind, and how they vary by location. It defines weather as short-term atmospheric conditions and climate as long-term weather patterns. Temperature is influenced by factors like latitude, altitude, and daily cycles. Thermometers are used to measure air temperature in degrees Celsius. Formulas are provided to calculate mean, maximum, minimum, and range of daily, monthly, and annual temperatures.
Atmosphere
The document describes the composition and layers of Earth's atmosphere. It begins by outlining the learning objectives which are to describe the atmosphere's composition and layers, explain heat transfer mechanisms, and explain the greenhouse effect. It then provides details on the composition of the atmosphere including the main gases, atmospheric dust, and varying components. The layers of the atmosphere are defined based on temperature and composition changes at different altitudes. Heat transfer through radiation, conduction, and convection is explained. Finally, the greenhouse effect is described as gases in the atmosphere trapping heat from the sun like glass in a greenhouse.
Chapter 17 – meteorology
Meteorologists use various data sources to predict the weather, but it is difficult to always be correct due to rapidly changing atmospheric conditions. Data comes from surface weather stations, weather balloons, satellites, radars, and computer models. Air masses and fronts influence weather, and storms form when different air masses meet. Hurricanes require specific conditions like warm ocean water. While meteorology studies the atmosphere, tiny differences in data can lead to different model results, so multiple models are used to predict daily weather.
ELEMENTS OF THE CLIMATE
This document discusses factors that influence atmospheric pressure and wind climate. It explains that atmospheric pressure is measured by barometer and is influenced by average pressure, altitude, and air temperature. Warm air is less dense and causes low pressure areas and precipitation, while cold, dense air causes high pressure areas. Wind is caused by differences in atmospheric pressure and blows from high to low pressure areas. The document outlines some of the most important global wind patterns like trade winds and polar winds that help transport heat between cold and warm zones.
Meteorology, Weather and Climate Unit, Earth Science Lesson PowerPoint
This PowerPoint is one small part of the Weather and Climate unit from www.sciencepowerpoint.com. This unit consists of a five part 2500+ slide PowerPoint roadmap, 14 page bundled homework package, modified homework, detailed answer keys, 19 pages of unit notes for students who may require assistance, follow along worksheets, and many review games. The homework and lesson notes chronologically follow the PowerPoint slideshow. The answer keys and unit notes are great for support professionals. The activities and discussion questions in the slideshow are meaningful. The PowerPoint includes built-in instructions, visuals, and review questions. Also included are critical class notes (color coded red), project ideas, video links, and review games. This unit also includes four PowerPoint review games (110+ slides each with Answers), 38+ video links, lab handouts, activity sheets, rubrics, materials list, templates, guides, and much more. Also included is a 190 slide first day of school PowerPoint presentation.
Areas of Focus within The Weather and Climate Unit: -What is weather?, Climate, Importance of the Atmosphere, Components of the Atmosphere, Layers of the Atmosphere, Air Quality and Pollution, Carbon Monoxide, Ozone Layer, Ways to Avoid Skin Cancer, Air Pressure, Barometer, Air Pressure and Wind, Fronts, Wind, Global Wind, Coriolis Force, Jet Stream, Sea Breeze / Land Breeze, Mountain Winds, Mountain Rain Shadow, Wind Chill, Flight, Dangerous Weather Systems, Light, Albedo, Temperature, Thermometers, Seasons, Humidity / Condensation / Evaporation, Dew Points, Clouds, Types of Clouds, Meteorology, Weather Tools, Isotherms, Ocean Currents, Enhanced Global Warming, Greenhouse Effect, The Effects of Global Warming, Biomes, Types of Biomes. Difficulty rating 8/10.
This unit aligns with the Next Generation Science Standards and with Common Core Standards for ELA and Literacy for Science and Technical Subjects. See preview for more information
If you have any questions please feel free to contact me. Thanks again and best wishes. Sincerely, Ryan Murphy M.Ed www.sciencepowerpoint@gmail.com
6.2 factors that influence weather
Weather is influenced by many factors including air masses, air pressure, sunlight, greenhouse gases, moisture, mountains, oceans, wind patterns, and human activity. Climate describes weather trends over many years and is impacted by radiation, conduction, convection, altitude, latitude, proximity to oceans, and landmass distribution. Fronts form where different air masses meet and influence local weather conditions.
Weather and Weather Elements
This document defines key weather-related terms and concepts:
- It describes weather as the condition of the atmosphere in a certain area at a given time. It also discusses meteorology, meteorologists, and the Philippine Atmospheric Geophysical Astronomical Services Administration.
- Key weather elements that are described include air temperature, wind speed and direction, cloud formation, and rainfall. Instruments for measuring these such as thermometers, anemometers, wind vanes, rain gauges, and barometers are also outlined.
- The Beaufort scale for describing wind speed is mentioned, as are terms for describing cloud coverage such as clear, partly cloudy, and overcast.
Ppt elements that affect weather
The document discusses various factors that affect weather, including cloudiness and precipitation. It describes different types of clouds and how they indicate upcoming weather conditions. Instruments for measuring and observing weather are also outlined, such as rain gauges and weather stations. Weather forecasting is important to be prepared for changing conditions.
Intro to Meteorology: Our Atmosphere
Here are the answers to your questions:
1) Heat is a form of energy that causes temperature change, while temperature is a measure of how hot or cold something is.
2) Fahrenheit measures temperature in degrees Fahrenheit (°F). Water freezes at 32°F and boils at 212°F. Celsius measures temperature in degrees Celsius (°C). Water freezes at 0°C and boils at 100°C. Kelvin measures temperature in kelvins (K) using the same increments as Celsius but water freezes at 273.15 K and boils at 373.15 K.
3) Dew point is the temperature at which water vapor in air condenses into liquid water. Condens
Weather elements and factors
This chapter discusses weather and climate. It defines weather as short-term atmospheric conditions, while climate refers to longer-term patterns over 30-35 years. Weather is described by temperature, humidity, precipitation, pressure and winds. Temperature is influenced by factors like latitude, altitude, distance from the sea, and cloud cover. Humidity refers to water vapor in the air. Precipitation forms as rain or snow depending on temperature. Air pressure decreases with altitude as air molecules are farther apart. Winds blow from high to low pressure areas. Sea and land breezes are influenced by differences in how land and sea absorb heat.
Meteorology
Meteorology is the science that studies atmospheric phenomena like weather. Meteorologists use weather stations around the world to collect data on elements like clouds, rain, wind, humidity, and instruments are used to measure these elements. The history of meteorology dates back to ancient times and key developments over centuries included the invention of the barometer, thermometer, and satellites that now allow global weather monitoring.
Climate of pakistan
The document discusses the climate and weather patterns of Pakistan. It describes four main seasons in Pakistan - winter, early summer, late summer, and post-monsoon. Rainfall in Pakistan comes from monsoon winds, western depressions, convectional currents, relief rainfall, and tropical cyclones. Pakistan has several climatic zones including the highland zone with cold winters and mild summers, the arid zone with hot and dry conditions, the lowland zone with hot summers and cool winters, and the coastal zone with moderate temperatures influenced by the sea. Factors like latitude, altitude, and proximity to the sea or desert affect temperatures across Pakistan. Flooding sometimes occurs when excessive monsoon rains cause rivers to
STRUCTURE OF THE ATMOSPHERE
The document discusses the structure and composition of Earth's atmosphere. It is divided into four layers: the troposphere, stratosphere, mesosphere, and thermosphere. Each layer has distinct temperature and chemical characteristics. The troposphere contains around 80% of the atmosphere and is where weather occurs. Temperatures decrease with height in the troposphere. The stratosphere has temperatures that increase with height due to ozone absorbing UV radiation. The mesosphere has temperatures that decrease rapidly with no gases to absorb radiation.
Weather and Climate lesson for Geography Secondary 1
This document defines weather and climate, and discusses how temperature and rainfall are measured and used to characterize different climate types. It describes the key differences between weather and climate, and how temperature and rainfall are measured using a thermometer and rain gauge. The major climate types - tropical, temperate, and polar - are introduced based on temperature and rainfall patterns. Examples of how climate influences daily life and activities are also provided.
Elements of weather and climate
This document discusses weather, climate, and how they are measured. It defines weather as the day-to-day conditions of a place, driven by differences in air pressure, temperature and moisture. Climate is defined as the average weather conditions over many years, usually 30, and is influenced by location. The key elements that make up weather and climate are discussed as temperature, pressure, wind, humidity and precipitation. Weather stations use instruments like hygrometers, rain gauges, barometers and maximum/minimum thermometers to measure these elements.
CLIMATE CLASS 9
PPT made by me is a small intro of this chapter by which you can understand this chapter very easily...............
Structure and Composition of the Atmosphere
The atmosphere is composed of gases, water droplets, and particles surrounding Earth. It has four main layers - the troposphere, stratosphere, mesosphere, and thermosphere - each decreasing or increasing in temperature with altitude. The troposphere is where weather occurs, extending 8-16km high. Above is the stratosphere where temperatures increase with little weather, then the mesosphere where temperatures decrease again up to 80km. The thermosphere is the outermost layer with increasing temperatures from 80km high. The atmosphere composition consists primarily of nitrogen, oxygen, argon, and trace gases. Water vapor is the most abundant variable gas.
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Meteorology, Weather and Climate Unit, Earth Science Lesson PowerPoint
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CLIMATE CHANGE: MEANING, CAUSES AND CONSEQUENCES
This document defines climate change and its causes and consequences. It begins by defining climate and weather, and explaining that climate change refers to major changes in temperature, rainfall, or wind patterns lasting decades or longer. The main causes of current climate change are human activities like burning fossil fuels which increase greenhouse gas emissions. Consequences of climate change include increased global warming, melting glaciers and ice sheets, rising sea levels causing flooding, more extreme weather, and effects on human health, wildlife, and the economy. The document provides details on these causes and consequences of climate change.
CLIMATE CHANGE: MEANING, CAUSES AND CONSEQUENCES
A brief presentation on Climate Change, its meaning, causes, and consequences made by me and my team mates
Global warming
Global Warming is the average rise in temperature of the Earth's atmosphere which results in climate change. this PPT showcace about Global Warming, it's causes, it's effects, some current facts, and precautions to control it.
Grade 9 Different Factors Affecting Climate.pptx
The document discusses several key topics related to climate and climate change:
- Climate is determined by various factors like latitude, elevation, proximity to water, ocean currents, and winds. It summarizes three main climate zones based on latitude.
- Human activities like increased greenhouse gas emissions are the main drivers of current climate change. Rising temperatures, sea level rise, extreme weather, and ocean acidification are some of the major impacts.
- Mitigating climate change requires concerted global efforts like increasing carbon sequestration, use of renewable energy, improved energy efficiency, and reducing agricultural emissions.
Climate Change.pptx
The document discusses several key topics related to climate change:
1) It describes greenhouse gases and their role in trapping heat and causing global warming.
2) Factors that influence climate such as latitude, oceans currents, and wind patterns are explained.
3) Evidence of a warming planet through rising temperatures, changing precipitation patterns, melting ice sheets and glaciers, and rising sea levels is presented.
4) Both current and future effects of climate change on organisms, agriculture/forestry, economies, and human health are outlined.
Climate Change and the Greenhouse Gases
This document discusses climate change and greenhouse gases. It begins by defining weather and climate, then discusses the greenhouse effect and the key greenhouse gases like carbon dioxide, methane, nitrous oxide and water vapor. It explains how human activities like burning fossil fuels have increased the levels of these gases in the atmosphere, contributing to increased global temperatures and climate change. The document also summarizes factors influencing long-term climate patterns such as the Milankovitch theory of ice ages driven by changes in Earth's orbit and axis.
Weather Revision Part 2
1. Anticyclones form due to Rossby waves turning away from poles, dense cool air over continents in winter, and semi-permanent high pressure zones associated with global circulation like subtropical high pressure.
2. The heat equator, where the most solar energy is received, migrates between the Tropics of Cancer and Capricorn, and the zone of heaviest rainfall migrates with it.
3. Short term climate change operates over periods up to 1000 years, with El Nino being an example of very short term widespread disruption.
Cambio climatico
Climate change refers to changes in weather patterns over time due to an increase in temperature caused by greenhouse gases trapping heat in the atmosphere. The two main phenomena associated with climate change are the greenhouse effect and global warming. The greenhouse effect occurs when gases like carbon dioxide in the atmosphere prevent heat from escaping, similar to the way a greenhouse retains heat. Global warming describes the rise in average temperatures worldwide due to these increased greenhouse gases. If climate change continues unchecked, its effects will include further temperature increases, changes to ecosystems, and threats to human health and agriculture.
Global climate change
Global warming is unequivocal according to climate scientists. The atmosphere is trapping rising levels of greenhouse gases like carbon dioxide, which is warming the planet. Some effects of climate change include more extreme weather, rising sea levels, and melting glaciers and ice sheets. While the climate naturally fluctuates, human activity like burning fossil fuels is the main driver of current warming trends according to the IPCC.
The global warming
Global warming refers to the long-term rise in the average temperature of the Earth from human industrial and agricultural activity. Evidence shows the climate is warming, with land temperatures increasing almost twice as fast as ocean temperatures due to higher heat capacity of oceans. External factors like increased greenhouse gases and changes in solar activity can cause the climate to warm or cool. Human greenhouse gas emissions have likely contributed to changes like sea level rise, extreme weather events, and reduced Arctic sea ice. Long-term global warming will be determined by how much carbon dioxide and other greenhouse gases are emitted.
Climate change and its effects
Climate change is a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions, or in the distribution of weather around the average conditions (i.e., more or fewer extreme weather events). Climate change is caused by factors such as biotic processes, variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions. Certain human activities have also been identified as significant causes of recent climate change, often referred to as "global warming"
Scientists actively work to understand past and future climate by using observations and theoretical models. A climate record — extending deep into the Earth's past — has been assembled, and continues to be built up, based on geological evidence from borehole temperature profiles, cores removed from deep accumulations of ice, floral and faunal records, glacial and periglacial processes, stable-isotope and other analyses of sediment layers, and records of past sea levels. More recent data are provided by the instrumental record. General circulation models, based on the physical sciences, are often used in theoretical approaches to match past climate data, make future projections, and link causes and effects in climate change.
Theory of climate change (kiran thorat)
This document discusses the theory of climate change, including natural causes like variations in the Earth's orbit, axis, and solar activity as well as human causes like fossil fuel burning. It also examines effects of climate change such as increased drought and flooding harming agriculture and effects on water resources. The document proposes mitigating climate change through technologies to reduce greenhouse gas emissions from agriculture and enhance carbon storage in soils and restored lands.
climaticphenomenaoccurringonagloballevel-230416112244-150eb5a9.pptx
The document discusses several climatic phenomena occurring on a global level, including the greenhouse effect which traps heat in the atmosphere through greenhouse gases like carbon dioxide and methane. It describes global warming as being caused by both natural and man-made factors. Climate change is defined as the transformation of the planet's usual climate patterns, primarily caused by human activities. El Niño and La Niña are also summarized as naturally occurring climate events in the Pacific Ocean that involve abnormal warming or cooling of sea surface temperatures.
Climatic Phenomena Occurring on a Global Level.pptx
The document discusses several climatic phenomena occurring on a global level, including the greenhouse effect which traps heat in the atmosphere and leads to natural warming of the Earth, global warming which can be caused by both human and natural factors, climate change characterized by changes in temperature, precipitation and wind caused by human activities, El Niño which is a natural warming of Pacific Ocean temperatures every few years, and La Niña which is the opposite phenomenon triggered by Pacific Ocean cooling.
4202: Climate change-1
This document provides information on climate change from a lecture given by Md. Abdullah-Al-Mahbub. It defines weather and climate, noting that weather is specific conditions over days while climate is average conditions over decades for a region. It discusses factors that determine climate like latitude, altitude, winds, and oceans. It also covers causes of climate change, distinguishing between natural causes like orbital changes, solar variations, and volcanic eruptions, and anthropogenic causes like greenhouse gas emissions from fossil fuel use and population growth since the Industrial Revolution. Finally, it lists some critical changes caused by climate change like warming temperatures, changes to the water cycle, and declining glaciers.
Climate Notes PowerPoint
Climate is defined as the pattern of weather in an area over many years. It is determined by factors like latitude, proximity to large bodies of water, ocean currents, mountains, and urbanization. Climate types are classified using Koppen's system which examines temperature, precipitation, and vegetation. Organisms adapt both structurally and behaviorally to survive in different climates. Climate can change over both short and long periods due to seasonal changes, phenomena like El Niño, variations in atmospheric composition, solar radiation levels, and shifts in Earth's orbit and axis. Current climate change is attributed to increased greenhouse gases from human activities like burning fossil fuels and deforestation.
Unit 2 Earth's Atmosphere
This document provides an overview of Earth's atmosphere including its composition, structure, and circulation patterns. It discusses key topics like the greenhouse effect, carbon cycle, climate zones, and factors that create suitable conditions for life. The atmosphere is divided into four main layers - the troposphere, stratosphere, mesosphere, and thermosphere - each with distinct temperature characteristics. Atmospheric circulation is driven by convection, wind patterns, and interactions between air masses. Climate and weather are also influenced by feedback loops within the carbon cycle and factors like albedo that can both amplify and dampen global temperature changes.
grade9differentfactorsaffectingclimate-240116020951-e81c6748.pptx
The document discusses several key topics related to climate change:
1) The earth's climate is changing in drastic ways due to human-caused factors like greenhouse gas emissions. This climate change threatens biodiversity and causes problems like rising sea levels.
2) Several natural factors influence climate, including latitude, prevailing winds, ocean currents, elevation, proximity to water bodies, and greenhouse gases. However, human activity is now the primary driver of climate change.
3) Key indicators show the planet is warming, including rising land and ocean temperatures, sea level rise, shrinking glaciers and ice sheets, and declining arctic sea ice. Five major greenhouse gases are responsible for this warming.
Gobal warming ppt
Global warming refers to the long-term rise in Earth's average surface temperature due to human emissions of greenhouse gases. Since pre-industrial times, human activities have increased Earth's average temperature by 1 degree Celsius. Climate change encompasses global warming and its wider impacts, such as changes in weather patterns, melting ice sheets and sea level rise. While global warming refers specifically to temperature increases from human greenhouse gas emissions, climate change also includes naturally-occurring factors. Addressing global warming requires reducing carbon emissions through individual lifestyle changes as well as policy-level solutions to preserve Earth for future generations.
Planetary Atmospheres II
The document discusses the atmospheres of terrestrial planets. It begins by defining what an atmosphere is and its basic structure. It then discusses atmospheric structure and composition for Earth, Venus, and Mars. Key points are made about how planetary atmospheres developed over time based on interactions between gravity, heating from the sun, and geological processes like volcanism. The document notes that atmospheric conditions on these planets have changed dramatically since their formations.
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Identity hobbies
Argentinians enjoy drinking mate, a tea made from yerba mate leaves drank with friends and family. Football is hugely popular, with Argentinians playing and watching matches, and having produced famous players like Messi. On Sundays, people often gather for asados, barbecues with family and friends. Tango is a famous Argentine dance typically danced by a couple. Other popular hobbies and pastimes include playing cards games like truco, having water balloon fights in summer, going to loud discos at night, listening to various types of music, riding bicycles in parks, and fishing with family and friends.
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Argentina's climate is projected to get warmer over the coming decades, with temperatures in the 2030s expected to be 0.5-1°C higher than 1960-1990 averages, rising to 1-2°C higher in the 2060s and 2-4.5°C higher in the 2090s. Precipitation patterns are also expected to change, with drier conditions projected for central and northern Argentina and wetter conditions for Patagonia. The frequency of hot days and nights will increase significantly.
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Climate change is happening now as evidenced by rising global temperatures, shifting rainfall patterns, and melting glaciers and snow. Extreme weather events are expected to become more frequent and intense. Sea levels have risen 17 cm in the last century and are rising nearly twice as fast in the last decade. Global surface temperatures have warmed since 1880 according to temperature reconstructions. The Greenland and Antarctic ice sheets and Arctic sea ice have declined rapidly in recent decades and glaciers are retreating worldwide. Climate change is transforming life on Earth and threatens to alter the planet's ability to support life if actions are not taken.
CamilaMartinNicolas_climchange
Recycling paper, scrap metal, and household waste reduces pollution and conserves energy and materials. It also saves money that can be spent elsewhere. Recycling materials is often cheaper than producing new materials, and natural processes like bacteria and converting rags to fabric can further aid recycling efforts. Recycling helps lessen the mountains of dirty black waste from smoke and toxic gases.
DanielaD_climch-evidence
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School e-zine launched
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______________________
Presentación utilizada en la presentación de la revista digital bilingüe realizado por los alumnos y docentes del departamento de inglés del nivel medio del "Instituto Santa Cruz" (BA, Argentina), en ocasión del 50º aniversario de la escuela.
Accounting for ICT integration
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Teachers that made a difference
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Secret garden2011
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InakiMalena_ClimateWeather
- 1. Climate Change PART I Malena and Iñaki Instituto Santa Cruz Buenos Aires - Argentina
- 2. Climate and Weather WEATHER: the state CLIMATE: the of the air at a average, or typical, particular place weather conditions and time;, for observed over a example, whether long period of time it´s warm or cold. for a given area.
- 3. World’s Climate It has been getting warmer since 1900. However, this has not occurred evenly across the world’s surface .
- 4. (The violet parts are the less- affected zones)
- 5. What Causes Climate Change? The most important natural causes are : • Volcanic Events • Ocean Currents • Comets • The Sun • The Greenhouse Effect Any unusual thing that happens on Earth has its global impact, but in the end, everything influences the climate in one way or another.
- 6. What is “the greenhouse effeCt”? • A process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases. • The heat caused by infra red radiation is absorbed by "greenhouse gases" such as water vapour, carbon dioxide, ozone and methane, which slows its escape from the atmosphere.